diff options
Diffstat (limited to 'clang/lib/Driver/ToolChains/Clang.cpp')
| -rw-r--r-- | clang/lib/Driver/ToolChains/Clang.cpp | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/clang/lib/Driver/ToolChains/Clang.cpp b/clang/lib/Driver/ToolChains/Clang.cpp index eb88a71e492..4b999925273 100644 --- a/clang/lib/Driver/ToolChains/Clang.cpp +++ b/clang/lib/Driver/ToolChains/Clang.cpp @@ -5226,6 +5226,17 @@ void Clang::ConstructJob(Compilation &C, const JobAction &JA, CmdArgs.push_back("-fwhole-program-vtables"); } + bool RequiresSplitLTOUnit = WholeProgramVTables || Sanitize.needsLTO(); + bool SplitLTOUnit = + Args.hasFlag(options::OPT_fsplit_lto_unit, + options::OPT_fno_split_lto_unit, RequiresSplitLTOUnit); + if (RequiresSplitLTOUnit && !SplitLTOUnit) + D.Diag(diag::err_drv_argument_not_allowed_with) + << "-fno-split-lto-unit" + << (WholeProgramVTables ? "-fwhole-program-vtables" : "-fsanitize=cfi"); + if (SplitLTOUnit) + CmdArgs.push_back("-fsplit-lto-unit"); + if (Arg *A = Args.getLastArg(options::OPT_fexperimental_isel, options::OPT_fno_experimental_isel)) { CmdArgs.push_back("-mllvm"); |
